这个目标，比学好数学或踢好足球更难。
It is a goal more difficult than excellence in arithmetic or soccer.
她不仅是他们的足球教练，也教他们英语、数学和其他科目。
She is their soccer coach and also teaches them English, math and other subjects.
他母亲说他现在同时在读三本书，数学作业轻松完成，甚至开始踢足球。
His mother said he is reading three books at a time, whizzing through math homework and even playing soccer.
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